Burris Fullfield Scope 2.5-10x42mm illum. Ballistic E3 ReticleBurris Fullfield Scope 2. 5 10x42mm illum. Ballistic E3 Reticle Ballistic E3 reticle; Matte black finish; Standard capped knob style; Illuminated reticle; 2. 5 10x magnification; 42 mm objective diameter; Rear focal plane; 1 inch main tube size; Field of view: 43 11 ft.; Eye relief: 75 85 mm; Exit pupil: 10. 1 4. 6 mm; 1 4 MOA click value; 81 MOA elevation adjustment; 81 MOA windage adjustment; Fixed 100 yard parallax; 10. 5 inch overall length;